Home / 897,565.20-1,238,755.12-515,665.80

Finding the Fourth Proportional to 897,565.20, 1,238,755.12 and 515,665.80

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Solution

The fourth proportional to 897,565.20, 1,238,755.12 and 515,665.80 is: 711,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,565.20 : 1,238,755.12 = 515,665.80 : x
  2. Step 2: Convert to fraction form
    897,565.20/1,238,755.12 = 515,665.80/x
  3. Step 3: Cross multiply
    897,565.20x = 1,238,755.12 × 515,665.80
  4. Step 4: Simplify right side
    897,565.20x = 638,783,649,958.90
  5. Step 5: Solve for x
    x = 638,783,649,958.90/897,565.20
  6. Step 6: Final answer
    x = 711,684.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.